100 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
to 3.7 cm. broad, rugose and very scabrous above, veiny grayish- 
tomentose and resinous-dotted beneath, 5-nerved from near the 
obtuse or subcordate base; petioles 6 to 9 mm. long, covered with 
a fine fuscous pubescence: heads numerous, rather small, discoid; 
pedicels filiform, 1 to 1.2 cm. long, some fascicled in the upper axils 
but most of them in regular hemispherical umbelliform leafy-bracted 
clusters (4 to 5 cm. in diameter) at the ends of the branches; invo¬ 
lucre cylindric-ovoid, somewhat turbinate at the base, the outer 
scales veiy short, linear-oblong to narrowly ovate, herbaceous, 
tomentulose, the intermediate oblong, obtuse, often erose and squar- 
rose at the tip, the inner lance-oblong, acute, bright yellow, peta- 
loid: achenes narrowly fusiform, angled, 2.7 mm. long, callose at 
the base, covered with short spreading gray hairs; pappus-awns 
about 20, narrow, attenuate, 4.0 mm. long. — C. prunifolia, Klatt, 
Bull. soc. bot. Belg., 31, 208, in part, not HBK. — Costa Rica, 
banks of the Rio Ceibo near Buenos Ayres, altitude 200 m., Janu¬ 
ary, 1892, Prof. II. Pittier , no. 4913, Chemin de la Caldera between 
San Mateo and San Ramon, P. Biolley , 25 January, 1892, no. 
7015; also by Prof. Pittier in woods at Boruca, altitude 450 m., 
February, 1891. C. prunifolia , IIBK., to which this plant was 
referred by Dr. Klatt, has larger leaves nearly or quite smooth and 
somewhat coriaceous. It also differs in the calyculate bractlets of 
the involucre, which are suborbicular and of larger size. 
C. grayii, Klatt, Leopoldina, 20, 96, overlooked in our revision, 
should replace C. tomentosa, Gray, not Gardner. 
C. tekntfolia, Oliver, Trans. Linn. soc. ser. 2, 2, 277, t. 43, figs. 
9-16 (1886). For this species the name of which is antedated by 
C. ternifolia , HBK., Nov. gen. et spec., 4, 294, we would propose 
C. oliverii. 
Tridax galeottii, Klatt, l.c., at least as to the plant with lobed 
pilose leaves. T. tuberosa, Rob. and Greenm., Proc. Amer. acad., 
32, 4. In the Klatt herbarium T. galeottii is represented by two 
sheets of well executed drawings. On one is an excellent repre¬ 
sentation of the plant we have called T. tuberosa , with lobed leaves, 
cuneate at the base and distinctly hirsute. On the other sheet two 
plants are represented, one being identical with that just mentioned, 
the other having the more oval serrate unlobed leaves of T. brachy- 
lepis , Ilemsl. Dr. Ivlatt’s description clearly shows that he had in 
mind the plant with lobed leaves. The description, however, is quite 
in error as to the involucral scales being 2-seriate. They are clearly 
